872225203423663 has 4 divisors (see below), whose sum is σ = 918131793077560. Its totient is φ = 826318613769768.

The previous prime is 872225203423661. The next prime is 872225203423681. The reversal of 872225203423663 is 366324302522278.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 872225203423663 - 2¹ = 872225203423661 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872225203423661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22953294826920 + ... + 22953294826957.

It is an arithmetic number, because the mean of its divisors is an integer number (229532948269390).

Almost surely, 2^{872225203423663} is an apocalyptic number.

872225203423663 is a deficient number, since it is larger than the sum of its proper divisors (45906589653897).

872225203423663 is a wasteful number, since it uses less digits than its factorization.

872225203423663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45906589653896.

The product of its (nonzero) digits is 34836480, while the sum is 55.

The spelling of 872225203423663 in words is "eight hundred seventy-two trillion, two hundred twenty-five billion, two hundred three million, four hundred twenty-three thousand, six hundred sixty-three".